ActivityKit

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Help people keep track of tasks and events that they care about with Live Activities on the Lock Screen, the Dynamic Island, and in StandBy.

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LiveActivity via Push-To-Start and Update token questions.
We are implementing starting an activity via Push-To-Start. For the most part it works great, however we have run into a few edge cases. Currently, we send the "start activity" push notification and it creates the Activity as expected. If the app doesn't send an update token w/in a configured time, we assume the activity didn't start and try to start the activity again. Occasionally we get into a situation where there have been multiple activities started, but it should really only be one. Here is my theory: We store an auth token in the keychain for all REST endpoints if the phone has been restarted and not unlocked, the app doesn't have access to the auth token and fails to send the update token to our backend. Are there any best practices on how to manage PTS and UPDATE tokens? (updating these w/o authentication seems problematic)
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14h
Issue Getting Live Activity Push to Start and Update Tokens
I'm adding live activities to my app and I'm trying to use push notifications to fully remotely start them and end them. The pushToStartTokenUpdates sequence gives start tokens exactly as expected, and triggers even when the app is fully terminated when a new live activity starts. However, the pushTokenUpdates sequence is far less predictable and seems to never trigger when the app is fully terminated. Even when the app is just backgrounded, it's still finicky. I send the "input-push-token": 1 as part of the aps payload too to begin the live activity, but that seems to have little to no effect. Is there any way to ensure that we can receive a push token specifically to update the live activity after it starts? It seems to me that if a live activity can be started via push even when the app is fully terminated, and live activities are meant to reflect active information, then the mechanism to update it via a new token should also be able to work when the app is terminated. Both sequences are subscribed to within the AppDelegate upon initial app launch. This is what my code looks like at the moment: func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { Task { for await newToken in Activity<WidgetAttributes>.pushToStartTokenUpdates { let tokenString = newToken.map{ String(format: "%02x", $0) }.joined() // send to server } } Task { for await activity in Activity<WidgetAttributes>.activityUpdates { Task { for await token in activity.pushTokenUpdates { let tokenString = token.map { String(format: "%02x", $0) }.joined() // send to server } } } } } } Thanks in advance for any insights!
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13
14h
Live Activities/Widget Extension Isolation
Our application currently supports Live Activities. We’re working on adding a new Widget and are weighing some architectural decisions regarding whether we should add it to the same extension target that our Live Activity lives in or create a new extension that would expose it and other widgets we plan to create in the future. In the Add Support for Live Activities documentation, it suggests adding Live Activity code to the existing widget extension to facilitate code reuse. Beyond code sharing, we’re trying to determine if there are downsides to isolating new Widget(s) into their own extension. Specifically, we are concerned about process isolation and how a failure/crash in one might impact the other. Assuming they did live in the same extension, we’re hoping to better understand some of the finer details as presented by the following questions: If a Widget (e.g., via the TimelineProvider) causes the extension process to crash, what is the guaranteed behavior for a currently running Live Activity? Is the relaunch and restoration of a Live Activity after an extension crash guaranteed, or is it best-effort? Is there a distinction in crash isolation between a TimelineProvider failure and a View rendering crash? Are there any known scenarios where a Widget crash could cause a Live Activity to be permanently dropped? Does keeping them in the same extension affect the memory budget, or does each 'instance' receive its own allocation? In short: we're looking to ensure that an issue with a Widget doesn't inadvertently affect a Live Activity (or vice-versa) when they live in the same WidgetsBundle within the same extension and are seeking guidance on whether it makes sense to keep them together or continue down the path of separate extensions in the interest of process safety. Any pointers to other documentation or known behavior would be greatly appreciated!
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15h
Live Activity Start and Update Token Invalidation
Hi everyone, I have a question about Live Activity start tokens and update tokens. After reading the documentation, it is still not very clear to me how often these tokens are invalidated, and whether their expiration is time-based or event-based. My current understanding is that the update token is generated when the Live Activity starts, and that it becomes invalid when the activity ends or is dismissed by the user. What I am not clear on is whether the update token can also become invalid at any point while the Live Activity is still active. I have a similar question about the start token. I have noticed that it is generated on the initial app launch, but I have also seen it get regenerated at what seems like random times. I would like to better understand what events or conditions cause a new start token to be issued. Is there any official guidance on the lifecycle of these tokens, specifically: whether they expire based on time, whether they are only invalidated by specific events, and what conditions trigger regeneration of the start token or update token? Any clarification would be appreciated. Thanks.
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5d
Live Activities Permissions
I have a live activity and even after a couple of times that it has shown on my lock screen it keeps prompting the user to tap on Don't Allow or Allow. Can someone help me understand why this is happening? I would like my users to only hit Allow once and not be prompted again, otherwise they would not be registered for updates, since update token only generates after selecting Allow.
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1w
apply .activityBackgroundTint modifier in smartstack
On iOS 26, when using .activityBackgroundTint modifiers to change the background color in the Activity Kit, the changes do not appear to apply correctly in Smart Stack. While the color changes as expected, the background is rendered as simply transparent without a glass effect which reduces readability. The glass effect is applied only when activityBackgroundTint is not used.
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176
1w
Live Activity / Dynamic Island countdown responds to manual device clock changes, while app timer and shielding remain correct
Our app runs offline-first focus sessions using FamilyControls / ManagedSettings shielding and DeviceActivity monitoring. The in-app session timer is protected against wall-clock manipulation by using monotonic elapsed time, and the shield remains active correctly when the user manually changes the iPhone clock. However, the Live Activity and Dynamic Island countdown appear to use the device's wall clock for their timer rendering. If the user changes the device time from Settings during an active session, the Live Activity / Dynamic Island countdown immediately jumps forward or backwards, even though the underlying session has not changed. Is there a recommended ActivityKit approach for rendering a Live Activity / Dynamic Island countdown that is resistant to manual device clock changes? If not, is this an expected limitation of Live Activity timer rendering? And is there any supported way for the host app or widget extension to detect wall-clock manipulation so the Live Activity can be corrected, dismissed, or replaced with a safer non-countdown state?
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136
2w
AlarmKit leaves an empty zombie Live Activity in Dynamic Island after swipe-dismiss while unlocked
Hi, We are the developers of Morning Call (https://morningcall.info), and we believe we may have identified an AlarmKit / system UI bug on iPhone. We can reproduce the same behavior not only in our app, but also in Apple’s official AlarmKit sample app, which strongly suggests this is a framework or system-level issue rather than an app-specific bug. Demonstration Video of producing zombie Live Activity https://www.youtube.com/watch?v=cZdF3oc8dVI Related Thread https://developer.apple.com/forums/thread/812006 https://developer.apple.com/forums/thread/817305 https://developer.apple.com/forums/thread/807335 Environment iPhone with Dynamic Island Alarm created using AlarmKit Device is unlocked when the alarm begins alerting Steps to reproduce Schedule an AlarmKit alarm. Wait for the alarm to alert while the device is unlocked. The alarm appears in Dynamic Island. Instead of tapping the intended stop or dismiss button, swipe the Dynamic Island presentation away. Expected result The alarm should be fully dismissed. The Live Activity should be removed. No empty UI should remain in Dynamic Island. Actual result The assigned AppIntent runs successfully. Our app code executes as expected. AlarmKit appears to stop the alarm correctly. However, an empty “zombie” Live Activity remains in Dynamic Island indefinitely. The user cannot clear it through normal interaction. Why this is a serious user-facing issue This is not just a cosmetic issue for us. From the user’s perspective, it looks like a Live Activity is permanently stuck in Dynamic Island. More importantly: Force-quitting the app does not remove it Deleting the app does not remove it In practice, many users conclude that our app has left a broken Live Activity running forever We receive repeated user complaints saying that the Live Activity “won’t go away” Because the remaining UI appears to be system-owned, users often do not realize that the only reliable recovery is to restart the phone. Most users do not discover that workaround on their own, so they instead assume the app is severely broken. Cases where the zombie state disappears Rebooting the phone Waiting for the next AlarmKit alert, then pressing the proper stop button on that alert Additional observations Inside our LiveActivityIntent, calling AlarmManager.shared.stop(id:) reports that the alarm has already been stopped by the system. We also tried inspecting Activity<AlarmAttributes<...>>.activities and calling end(..., dismissalPolicy: .immediate), but in this state no matching activity is exposed to the app. This suggests that the alarm itself has already been stopped, but the system-owned Live Activity UI is not being cleaned up correctly after the swipe-dismiss path. Why this does not appear to be an app logic issue The intent is invoked successfully. The alarm stop path is reached. The alarm is already considered stopped by the system. The remaining UI appears to be system-owned. The stuck UI persists even after our own cleanup logic has run. The stuck UI also survives app force-quit and app deletion.
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Minimum achievable latency for ending a Live Activity after app force-kill via APNs push-to-end
Context I'm building a study-timer feature for an iOS app (Flutter + native ActivityKit) that displays a Live Activity on the Lock Screen / Dynamic Island while a session is running. When the user force-quits the app by swiping it up from the App Switcher, I want the Live Activity to disappear as quickly as possible. I have already confirmed (from on-device testing and Apple Developer Forums thread 732418) that: applicationWillTerminate is not called on swipe-up force-kill, only on OS-initiated termination or crash. So synchronous Activity.end(...) from the app itself is not a solution for the force-kill path. Shortening staleDate does not visually dismiss the Live Activity once the app process is gone — the Widget Extension keeps rendering the last fresh snapshot and there is no body-reevaluation trigger on the stale transition post-app-death. (I implemented and verified this, then rolled it back.) The only Apple-official reliable mechanism is APNs push-to-end (Activity.request(pushType: .token) + server sends event: end via APNs). Current architecture I have APNs push-to-end working end-to-end. Structure: Client: Activity.request(pushType: .token), subscribe to Activity.pushTokenUpdates, forward each new token to the backend. Backend: On every client heartbeat, upsert (user_id, la_apns_token, la_activity_id, last_heartbeat) into Postgres. A separate scheduler polls for rows whose last_heartbeat < now() - grace_ttl and sends APNs event: end to the stored token. Parameters I am currently running with: Parameter Value Client heartbeat interval 60 s Orphan grace TTL (server) 135 s (heartbeat × 2.25, to absorb network jitter) Scheduler poll interval 30 s The observation End-to-end latency from "user force-kills the app" to "Live Activity disappears from Lock Screen" is: Worst case: 60 + 135 + 30 = ~225 s (~3.75 min) Typical: ~3 min (as consistently measured on iOS 26.4.1, iPhone 17 Pro Max) Theoretical minimum (if the kill happens exactly at a heartbeat boundary): ~135 s Users perceive 3 minutes as broken — the timer clearly stopped (no ticking), but the Live Activity "ghost" is still visible on the Lock Screen. My question Is there any Apple-supported mechanism to reliably tear down a Live Activity faster than ~2 minutes after the owning app's process is gone, given that applicationWillTerminate does not fire on swipe-kill? Specifically: Is there any practical lower bound below ~60 s for this scenario using the current ActivityKit + APNs model, assuming we are not willing to spam heartbeats every few seconds? I can push heartbeat to 20–30 s, but the server cost grows linearly with active sessions. Does BGAppRefreshTask / BGProcessingTask have any documented lifecycle hook that fires on user-initiated swipe-kill specifically, so that I could do a "last-heartbeat flush" just before the process dies? My understanding is that background tasks are scheduled for later and do not fire synchronously at termination. Is there any signal from APNs/ActivityKit to my server (e.g. a feedback-service-like mechanism) that indicates "this Live Activity's owning app was force-killed", which would let the server short-circuit the heartbeat-based orphan detection? Are there any new APIs in iOS 18.x or the upcoming release that address this specific force-kill → LA-dismissal latency? I could not find anything in the 18.x release notes, but I may have missed it. What I am NOT asking I am not asking how to implement APNs push-to-end (that works). I am not asking about applicationWillTerminate (I already confirmed it does not fire on swipe-kill). I am not asking about shortening staleDate as a visual workaround (I already verified it does not trigger body reevaluation post-kill). Environment iOS 26.4.1 (also reproducible on 18.x devices I have on hand) iPhone 17 Pro Max, iPhone 15 Pro, iPad Air 11-inch (M3) Xcode 26.x Activity.request(pushType: .token) with ActivityContent + custom stalenessInterval = 120s APNs HTTP/2 via token auth (.p8), targeting api.push.apple.com in production apns-push-type: liveactivity, apns-priority: 10, payload includes event: end What I have tried (for the record, to avoid "did you try" responses) applicationWillTerminate with DispatchSemaphore 3.5 s sync wait + dismissalPolicy: .immediate — works only for OS-terminate, not swipe-kill. stalenessInterval = 30s + 15 s refresh cadence + override to 5 s on AppLifecycleState.paused — verified not to dismiss the LA after app death. Cold-start reconciliation via Activity<...>.activities on next app launch — works, but that only helps if the user relaunches. Current APNs push-to-end with 60 s / 135 s / 30 s configuration — works, but latency is the complaint. Any guidance, even "no, ~2 minutes is the floor by design" with a pointer to the relevant doc, would be very helpful. Thank you.
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108
2w
Live Activity updates not received on iPhone 16 Pro Max when started via ActivityKit push
Description When starting Live Activities via ActivityKit push notifications, the “start” notification is received correctly on iPhone 16 Pro Max, but subsequent update or end push notifications are not. The same implementation on iPhone 16 Pro behaves as expected (both start and update/end notifications are delivered and processed). Environment Property Value Device (failing) iPhone 16 Pro Max Device (working) iPhone 16 Pro iOS Version 18.5 Xcode / SDK 16.2/ActivityKit / Push Notifications Network Wi-Fi / Cellular (both tested) Data Collection Method Devices connected via USB. Logs captured using Console.app. Log filtering applied for the liveactivitiesd daemon to isolate Live Activity behavior. Initial Triage/Observations Payload format confirmed compatible; no incompatible fields. APNs token remains the same across messages (no refresh). Identical ActivityKit subscriptions/participants on both devices. Server-side delivery is confirmed: iPhone 16 Pro receives all messages (start, update, end). Only iPhone 16 Pro Max fails to receive update or end push notifications. Log Analysis iPhone 16 Pro (Working) Push-to-Start successfully received: 13:45:20 - APSXPCDeliverMessageEvent: Created APSIncomingMessage 13:45:20 - Received message: eventType: start(SessionPushNotifications.IncomingMessage.EventType.StartParameters(attributesType: "AchToLSUpgradeAttributes", attributesData: 125 bytes, inputs: [])) 13:45:20 - Created activity: 1C081AC5-01AE-4EC0-8B67-5F2A9FAE2D60 13:45:45 - APSXPCDeliverMessageEvent: Created APSIncomingMessage 13:45:45 - Received message: eventType: end(dismissDate: Optional(2025-07-21 21:00:44 +0000)) 13:45:20 - Activity updated: 1C081AC5-01AE-4EC0-8B67-5F2A9FAE2D60 13:45:20 - Local activity did update: 1C081AC5-01AE-4EC0-8B67-5F2A9FAE2D60 iPhone 16 Pro Max (Failing) 13:56:39 - APSXPCDeliverMessageEvent: Created APSIncomingMessage 13:56:39 - Received message: eventType: start(SessionPushNotifications.IncomingMessage.EventType.StartParameters(attributesType: "AchToLSUpgradeAttributes", attributesData: 125 bytes, inputs: [])) 13:56:39 - Created activity: E6BBF691-0C7A-4791-98D2-6F1440D9932E **No subsequent APNs push-to-update or push-to-end messages received.** 13:56:39 - No destinations for event E6BBF691... of type start 13:56:40 - No destinations for event E6BBF691... of type update Questions for Apple Engineering Are there known issues with ActivityKit push notifications specifically on iPhone 16 Pro Max devices? What additional diagnostic logs (system, APNs, liveactivitiesd) would be most helpful to collect? Could device-specific power management, notification settings, or OS-level changes on Pro Max models affect Live Activity updates? Are there differences in how Live Activity push subscriptions or routing are handled on iPhone 16 Pro Max vs Pro that could lead to this issue?
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3w
Live Activity Stops Updating After 30 Seconds in Background During Audio Playback
Hi I developed a music app that plays offline audio and displays lyrics using Live Activities. According to ActivityKit documentation, Live Activities can be updated from the background. However, in my case, updates stop after ~30 seconds when the app goes to the background or the device is locked. Important points: The app continues running in the background (audio playback works fine using AVAudioSession with .playback) Background code execution is working as expected Only the Live Activity stops updating I am not using push updates since this is an offline app. Is there any limitation or requirement for updating Live Activities continuously in the background during audio playback? Audio Session Configuration let session = AVAudioSession.sharedInstance() try session.setCategory( .playback, mode: .default, options: [.mixWithOthers] // ✅ DO NOT interrupt other audio ) try session.setActive(true) print("✅ [AudioSession] Activated with mixWithOthers") } catch { print("❌ [AudioSession] Error: \(error)") } Live Activity Update Methods guard let activity = getLiveActivity(for: recordID) else{ print("⚠️ No Live Activity found for recordID: \(recordID)") return } guard activity.activityState == .active else { print("⚠️ Activity is not active") return } Task { let content = ActivityContent( state: state, staleDate: Date().addingTimeInterval(60 * 60 * 12), relevanceScore: 1.0 ) await activity.update(content) print("✅ Live Activity updated with ActivityContent") } }
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269
3w
Live Activity Silent Rendering Failure- Any Way to Detect Crash / Failure State?
Hi Apple Team, We are facing an issue with Live Activities where the UI intermittently fails to render and shows a loader or blank state. After extensive debugging, we’ve identified that the failure happens during the rendering phase inside the system process (WidgetKit / liveactivitiesd), but there are no actionable signals exposed to the app. Problem: Live Activity launches successfully After a few updates or under certain UI conditions, it: stops rendering shows a loader / blank UI sometimes disappears No crash logs are generated No MetricKit diagnostics available for the extension Console logs show: Invalid frame dimension (negative or non-finite) Archive was nil. LiveActivity will be empty Sometimes because of memory pressure too The extension process appears to terminate silently Challenge Currently, there is no way to detect from the app side that: the Live Activity has failed to render the extension process has crashed/terminated the UI is no longer being updated Questions Is there any callback, delegate, or lifecycle hook that notifies when: a Live Activity rendering fails the extension process crashes or is terminated by the system? Is there any recommended way to detect a “broken” Live Activity state (e.g., stuck loader / non-updating UI)? Are there any diagnostic APIs or logs we can rely on in production to identify such failures? Is this considered expected behavior under certain system constraints (e.g., memory/rendering limits), and if so, are there guidelines to proactively detect or mitigate it? Goal We want to: proactively detect Live Activity failure log it for monitoring optionally fallback or recover gracefully Additional context: We fixed all the issues and the live activity is pretty stable. But asking for methods to track & fix such cases.
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264
4w
Live Activity Not Updating Frequently for Offline Music App (Lyrics Sync Issue)
Hi everyone, I’m currently implementing Live Activities in my music app to display real-time lyrics on the Lock Screen. The app works fully offline, so I’m not using push updates or push tokens. Instead, I’m updating the Live Activity locally as each new line of lyrics is played (essentially near real-time updates synced with the song). However, I’m running into an issue where the Live Activity UI is not updating reliably or frequently enough. Even though I’m calling the update method for each lyric line, the changes are either delayed or not reflected at all. Here’s some additional context: • The app runs fine in the background (verified via battery usage and playback behavior) • Live Activity is successfully created and initially displayed • Updates are triggered locally (no push notifications involved) • Updates are happening quite frequently (per lyric line) • No crashes or errors are observed My questions: 1. Is there a system-imposed throttling limit on how frequently Live Activities can be updated locally? 2. Are there recommended update intervals for smooth UI updates (e.g., for use cases like lyrics or timers)? 3. Does Live Activity deprioritize updates for offline apps or background execution? 4. Are there any additional configurations or capabilities required to ensure consistent updates? 5. Is using something like AsyncStream or other concurrency patterns helpful in this case? 6. Are there any undocumented limitations or best practices for high-frequency updates? 7. Is there any private or internal API used by Apple apps (like Music) that allows smoother real-time updates? My goal is to achieve smooth, near real-time lyric updates similar to Apple Music’s Now Playing experience. Any guidance, best practices, or clarification would be greatly appreciated. Thanks in advance!
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206
4w
Live Activity works perfectly on Simulator but fails on physical device: "No asset provider bundle ID provided"
Hello community, I am implementing a Live Activity for my existing App Store app. The Live Activity works perfectly on the iOS Simulator, but it completely fails to appear on the physical device's lock screen. When I call Activity.request, it succeeds and returns a valid Activity ID, but the physical device's console immediately outputs the following errors from liveactivitiesd: liveactivitiesd is not entitled to specify a scene target. Defaulting containingProcess target to liveactivitiesd No asset provider bundle ID provided I have spent days debugging this and have tried every known workaround. Here is the comprehensive list of what I have already verified and attempted: Environment: Xcode: 16.4 iOS Device: iPhone 13 mini, iOS 26.3.1 macOS: Sequoia 15.6 What I have verified/tried (to avoid duplicate suggestions): NSSupportsLiveActivities: It is set to YES in the main app's Info.plist. I also tried adding it to the Widget Extension's Info.plist just in case. App Icons: The main app has a valid AppIcon set in Assets.xcassets. The Primary App Icon Set Name in Build Settings is correctly set to AppIcon. Bundle IDs: They match perfectly (com.mycompany.app and com.mycompany.app.MyWidget). Version & Build Numbers: The main app and the Widget Extension have exactly the same Version and Build numbers. App Groups & Entitlements: Checked and perfectly synced between the main app and the extension. Dummy Widget: Since it's a Live-Activity-only extension, I added a standard static DummyWidget to the WidgetBundle to prevent the known iOS 17 bug where the system ignores extensions without home screen widgets. Memory/Sanitizers: Ensured Address Sanitizer and Zombie Objects are completely disabled in the Scheme to prevent the 30MB memory limit crash on the device. Nuclear Option: Completely deleted the Widget Extension target, wiped DerivedData, restarted the Mac and iPhone, and recreated the extension from scratch. Minimal UI Test: Replaced the widget's UI with a simple Text("Test") to rule out any SwiftUI rendering crashes. Device Settings: Verified that "Live Activities" is enabled under "Face ID & Passcode" settings on the physical iPhone. Despite all of this, the Simulator works flawlessy, while the device throws No asset provider bundle ID provided and shows nothing. Does anyone know what specific condition causes liveactivitiesd to fail to find the asset provider (the parent app) on a physical device for an existing app? Are there any undocumented provisioning profile quirks or obscure Build Settings I might be missing? Any insights would be deeply appreciated. Thank you!
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244
Apr ’26
After iOS app overlay installation widget process killed OSLaunchdJob | handle= start succeeded, info=spawn failed, error=111: Invalid or missing Program/ProgramArguments
默认 chronod [com.jd.jinrong.JDJRWidget] Creating session... 默认 chronod [DFB1D11C]: activityHandler ended 默认 iconservicesagent [0x5e2812320] activating connection: mach=false listener=false peer=true name=com.apple.iconservices.peer.0x5e2812320 默认 runningboardd <OSLaunchdJob | handle=DCD4DC2C-32B3-4340-94F7-72C8C150F82C>: start succeeded, info=spawn failed, error=111: Invalid or missing Program/ProgramArguments 错误 runningboardd Process start failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 默认 runningboardd <OSLaunchdJob | handle=DCD4DC2C-32B3-4340-94F7-72C8C150F82C>: remove failed with error 144 Requestor lacks required entitlement 错误 runningboardd Job remove after failed start failed with Error Domain=OSLaunchdErrorDomain Code=144 "Requestor lacks required entitlement" UserInfo={NSLocalizedFailureReason=Requestor lacks required entitlement} 错误 runningboardd Launch failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 默认 runningboardd Executing launch request for xpcservice<com.jd.jinrong.JDJRWidget([osservice<com.apple.chronod>:2892])> (Launching extension com.jd.jinrong.JDJRWidget(BFEC114A-32BF-4A62-97F3-8B0C3FE6AB70) for host 2892) 默认 runningboardd Checking PreventLaunch: global:0 exPath:(null) predicates:(null) allow:(null) 默认 runningboardd Skipping preflight as <RBSLaunchRequest| xpcservice<com.jd.jinrong.JDJRWidget([osservice<com.apple.chronod>:2892])>; "Launching extension com.jd.jinrong.JDJRWidget(BFEC114A-32BF-4A62-97F3-8B0C3FE6AB70) for host 2892"> is not an app 默认 runningboardd Creating and launching job for: xpcservice<com.jd.jinrong.JDJRWidget([osservice<com.apple.chronod>:2892])> 默认 runningboardd <OSLaunchdJob | handle=3BD97E17-E46A-41F7-B794-520044BCD36D>: submitExtension created a job 默认 runningboardd <OSLaunchdJob | handle=3BD97E17-E46A-41F7-B794-520044BCD36D>: createInstance created a job <OSLaunchdJob | handle=3B5CA561-A268-4A5C-BAFF-819801EB4465> 默认 runningboardd <OSLaunchdJob | handle=3B5CA561-A268-4A5C-BAFF-819801EB4465>: start succeeded, info=spawn failed, error=111: Invalid or missing Program/ProgramArguments 错误 extensionkitservice RBSLaunchRequest error launching extension com.jd.jinrong.JDJRWidget error: Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0xca4d04aa0 {Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}} 错误 runningboardd Process start failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 默认 runningboardd <OSLaunchdJob | handle=3B5CA561-A268-4A5C-BAFF-819801EB4465>: remove failed with error 144 Requestor lacks required entitlement 错误 runningboardd Job remove after failed start failed with Error Domain=OSLaunchdErrorDomain Code=144 "Requestor lacks required entitlement" UserInfo={NSLocalizedFailureReason=Requestor lacks required entitlement} 错误 runningboardd Launch failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 错误 chronod -[_EXServiceClient launchWithConfiguration:error:]_block_invoke failed with error: Error Domain=com.apple.extensionKit.errorDomain Code=2 "(null)" UserInfo={NSUnderlyingError=0xde6b31c10 {Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0xde6b328e0 {Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}}} 错误 chronod New process is nil. 错误 chronod Failed to create extensionProcess for extension 'com.jd.jinrong.JDJRWidget' error: Error Domain=com.apple.extensionKit.errorDomain Code=2 "(null)" UserInfo={NSUnderlyingError=0xde6b31c10 {Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0xde6b328e0 {Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}}}. 默认 chronod [com.jd.jinrong.JDJRWidget] Failed to launch extension with error: Error Domain=com.apple.extensionKit.errorDomain Code=2 UserInfo={NSUnderlyingError=0xde6b31c10 {Error Domain=RBSRequestErrorDomain Code=5 UserInfo={NSLocalizedFailureReason=, NSUnderlyingError=0xde6b328e0 {Error Domain=NSPOSIXErrorDomain Code=111 UserInfo={NSLocalizedDescription=}}}}}.
0
0
228
Mar ’26
Urgent
I am developing a productivity app called "FocusPact" using the Screen Time API (Family Controls). Current Status: The parent app bundle ID (com.hayashikento.FocusPact) has already been approved for the Family Controls (Distribution) entitlement. I have recently submitted a new request for the DeviceActivityMonitorExtension bundle ID: com.hayashikento.FocusPact.FocusPActMonitor. The Issue: Currently, the extension only works while debugging with Xcode (Development entitlement). When the device is disconnected, the intervalWillEndWarning and intervalDidEnd triggers are ignored by the system because the Extension ID lacks the Distribution entitlement. This is a critical blocker for my MVP testing phase on TestFlight, as I cannot verify the core "automatic re-blocking" logic in a real-world environment. Request: Could any Apple staff or engineers help expedite the linking of this extension ID to my existing approved entitlement? Parent App ID: com.hayashikento.FocusPact Extension ID: com.hayashikento.FocusPact.FocusPActMonitor I would greatly appreciate any guidance or assistance to resolve this so I can proceed with user testing. Thank you.
0
0
171
Mar ’26
Live Activity triggered by AlarmKit remains as an empty state
I configured my app to show a Live Activity when an alarm rings using AlarmKit. However, if I dismiss the Live Activity by tapping somewhere other than the X button, and then long-press the Dynamic Island, a new Live Activity appears that is long but contains no information. Currently, the only way I can remove this empty Live Activity is to press the X button while the alarm is in the snooze state. Pressing the X button on the initial alarm does not remove it. Is there any way to prevent this behavior or properly handle / clean up this empty Live Activity?
7
2
533
Mar ’26
Can't create a Live Activity from background
Our app is using the CLLocationManager to wake up the app near an iBeacon and then tries to connect to the accessory via bluetooth and UWB. For this to work in the background we need to create a Live Activity and show the user that the app is doing something. When the app is in the foreground or just recently got into the inactivity mode this works fine and we can use CoreBluetooth/NearbyInteraction even when the app then enters the background mode. But when the app is longer in the background creating a Live Activity via Activity.request() throws an ActivityAuthorizationError.visibility. According to the documentation the LiveActivityIntent is able to workaround this background restriction but I get the same exception when I create the LiveActivity from the perform() method. Is there another API to create Live Activities? Do I need to prepare the LiveActivityIntent somehow?
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Mar ’26
Prevent Live Activity from appearing on Apple Watch
Hello, I’m working on an iOS app where we have integrated ActivityKit to support Live Activities. Our app currently supports iOS 16.x and above, and we do not have an Apple Watch app or watchOS support. However, we noticed that when a Live Activity starts on the iPhone, it automatically appears on the Apple Watch as well. Since our app is not designed for Apple Watch, we would like to prevent the Live Activity UI from appearing on the watch. My questions: Is there any way to disable or prevent Live Activities from showing on Apple Watch via code? Are there any configuration options in ActivityKit or Widget configuration that can restrict Live Activities to iPhone only? Our current setup: Minimum iOS version: 16.x Using ActivityKit for Live Activities No watchOS target in the app Any guidance or recommended approach would be greatly appreciated. Thanks
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216
Mar ’26
LiveActivity via Push-To-Start and Update token questions.
We are implementing starting an activity via Push-To-Start. For the most part it works great, however we have run into a few edge cases. Currently, we send the "start activity" push notification and it creates the Activity as expected. If the app doesn't send an update token w/in a configured time, we assume the activity didn't start and try to start the activity again. Occasionally we get into a situation where there have been multiple activities started, but it should really only be one. Here is my theory: We store an auth token in the keychain for all REST endpoints if the phone has been restarted and not unlocked, the app doesn't have access to the auth token and fails to send the update token to our backend. Are there any best practices on how to manage PTS and UPDATE tokens? (updating these w/o authentication seems problematic)
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82
Activity
14h
Issue Getting Live Activity Push to Start and Update Tokens
I'm adding live activities to my app and I'm trying to use push notifications to fully remotely start them and end them. The pushToStartTokenUpdates sequence gives start tokens exactly as expected, and triggers even when the app is fully terminated when a new live activity starts. However, the pushTokenUpdates sequence is far less predictable and seems to never trigger when the app is fully terminated. Even when the app is just backgrounded, it's still finicky. I send the "input-push-token": 1 as part of the aps payload too to begin the live activity, but that seems to have little to no effect. Is there any way to ensure that we can receive a push token specifically to update the live activity after it starts? It seems to me that if a live activity can be started via push even when the app is fully terminated, and live activities are meant to reflect active information, then the mechanism to update it via a new token should also be able to work when the app is terminated. Both sequences are subscribed to within the AppDelegate upon initial app launch. This is what my code looks like at the moment: func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { Task { for await newToken in Activity<WidgetAttributes>.pushToStartTokenUpdates { let tokenString = newToken.map{ String(format: "%02x", $0) }.joined() // send to server } } Task { for await activity in Activity<WidgetAttributes>.activityUpdates { Task { for await token in activity.pushTokenUpdates { let tokenString = token.map { String(format: "%02x", $0) }.joined() // send to server } } } } } } Thanks in advance for any insights!
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13
Activity
14h
Live Activities/Widget Extension Isolation
Our application currently supports Live Activities. We’re working on adding a new Widget and are weighing some architectural decisions regarding whether we should add it to the same extension target that our Live Activity lives in or create a new extension that would expose it and other widgets we plan to create in the future. In the Add Support for Live Activities documentation, it suggests adding Live Activity code to the existing widget extension to facilitate code reuse. Beyond code sharing, we’re trying to determine if there are downsides to isolating new Widget(s) into their own extension. Specifically, we are concerned about process isolation and how a failure/crash in one might impact the other. Assuming they did live in the same extension, we’re hoping to better understand some of the finer details as presented by the following questions: If a Widget (e.g., via the TimelineProvider) causes the extension process to crash, what is the guaranteed behavior for a currently running Live Activity? Is the relaunch and restoration of a Live Activity after an extension crash guaranteed, or is it best-effort? Is there a distinction in crash isolation between a TimelineProvider failure and a View rendering crash? Are there any known scenarios where a Widget crash could cause a Live Activity to be permanently dropped? Does keeping them in the same extension affect the memory budget, or does each 'instance' receive its own allocation? In short: we're looking to ensure that an issue with a Widget doesn't inadvertently affect a Live Activity (or vice-versa) when they live in the same WidgetsBundle within the same extension and are seeking guidance on whether it makes sense to keep them together or continue down the path of separate extensions in the interest of process safety. Any pointers to other documentation or known behavior would be greatly appreciated!
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2
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20
Activity
15h
Live Activity Start and Update Token Invalidation
Hi everyone, I have a question about Live Activity start tokens and update tokens. After reading the documentation, it is still not very clear to me how often these tokens are invalidated, and whether their expiration is time-based or event-based. My current understanding is that the update token is generated when the Live Activity starts, and that it becomes invalid when the activity ends or is dismissed by the user. What I am not clear on is whether the update token can also become invalid at any point while the Live Activity is still active. I have a similar question about the start token. I have noticed that it is generated on the initial app launch, but I have also seen it get regenerated at what seems like random times. I would like to better understand what events or conditions cause a new start token to be issued. Is there any official guidance on the lifecycle of these tokens, specifically: whether they expire based on time, whether they are only invalidated by specific events, and what conditions trigger regeneration of the start token or update token? Any clarification would be appreciated. Thanks.
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1
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53
Activity
5d
Live Activities Permissions
I have a live activity and even after a couple of times that it has shown on my lock screen it keeps prompting the user to tap on Don't Allow or Allow. Can someone help me understand why this is happening? I would like my users to only hit Allow once and not be prompted again, otherwise they would not be registered for updates, since update token only generates after selecting Allow.
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92
Activity
1w
apply .activityBackgroundTint modifier in smartstack
On iOS 26, when using .activityBackgroundTint modifiers to change the background color in the Activity Kit, the changes do not appear to apply correctly in Smart Stack. While the color changes as expected, the background is rendered as simply transparent without a glass effect which reduces readability. The glass effect is applied only when activityBackgroundTint is not used.
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176
Activity
1w
Live Activity / Dynamic Island countdown responds to manual device clock changes, while app timer and shielding remain correct
Our app runs offline-first focus sessions using FamilyControls / ManagedSettings shielding and DeviceActivity monitoring. The in-app session timer is protected against wall-clock manipulation by using monotonic elapsed time, and the shield remains active correctly when the user manually changes the iPhone clock. However, the Live Activity and Dynamic Island countdown appear to use the device's wall clock for their timer rendering. If the user changes the device time from Settings during an active session, the Live Activity / Dynamic Island countdown immediately jumps forward or backwards, even though the underlying session has not changed. Is there a recommended ActivityKit approach for rendering a Live Activity / Dynamic Island countdown that is resistant to manual device clock changes? If not, is this an expected limitation of Live Activity timer rendering? And is there any supported way for the host app or widget extension to detect wall-clock manipulation so the Live Activity can be corrected, dismissed, or replaced with a safer non-countdown state?
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136
Activity
2w
AlarmKit leaves an empty zombie Live Activity in Dynamic Island after swipe-dismiss while unlocked
Hi, We are the developers of Morning Call (https://morningcall.info), and we believe we may have identified an AlarmKit / system UI bug on iPhone. We can reproduce the same behavior not only in our app, but also in Apple’s official AlarmKit sample app, which strongly suggests this is a framework or system-level issue rather than an app-specific bug. Demonstration Video of producing zombie Live Activity https://www.youtube.com/watch?v=cZdF3oc8dVI Related Thread https://developer.apple.com/forums/thread/812006 https://developer.apple.com/forums/thread/817305 https://developer.apple.com/forums/thread/807335 Environment iPhone with Dynamic Island Alarm created using AlarmKit Device is unlocked when the alarm begins alerting Steps to reproduce Schedule an AlarmKit alarm. Wait for the alarm to alert while the device is unlocked. The alarm appears in Dynamic Island. Instead of tapping the intended stop or dismiss button, swipe the Dynamic Island presentation away. Expected result The alarm should be fully dismissed. The Live Activity should be removed. No empty UI should remain in Dynamic Island. Actual result The assigned AppIntent runs successfully. Our app code executes as expected. AlarmKit appears to stop the alarm correctly. However, an empty “zombie” Live Activity remains in Dynamic Island indefinitely. The user cannot clear it through normal interaction. Why this is a serious user-facing issue This is not just a cosmetic issue for us. From the user’s perspective, it looks like a Live Activity is permanently stuck in Dynamic Island. More importantly: Force-quitting the app does not remove it Deleting the app does not remove it In practice, many users conclude that our app has left a broken Live Activity running forever We receive repeated user complaints saying that the Live Activity “won’t go away” Because the remaining UI appears to be system-owned, users often do not realize that the only reliable recovery is to restart the phone. Most users do not discover that workaround on their own, so they instead assume the app is severely broken. Cases where the zombie state disappears Rebooting the phone Waiting for the next AlarmKit alert, then pressing the proper stop button on that alert Additional observations Inside our LiveActivityIntent, calling AlarmManager.shared.stop(id:) reports that the alarm has already been stopped by the system. We also tried inspecting Activity<AlarmAttributes<...>>.activities and calling end(..., dismissalPolicy: .immediate), but in this state no matching activity is exposed to the app. This suggests that the alarm itself has already been stopped, but the system-owned Live Activity UI is not being cleaned up correctly after the swipe-dismiss path. Why this does not appear to be an app logic issue The intent is invoked successfully. The alarm stop path is reached. The alarm is already considered stopped by the system. The remaining UI appears to be system-owned. The stuck UI persists even after our own cleanup logic has run. The stuck UI also survives app force-quit and app deletion.
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4
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7
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427
Activity
2w
Minimum achievable latency for ending a Live Activity after app force-kill via APNs push-to-end
Context I'm building a study-timer feature for an iOS app (Flutter + native ActivityKit) that displays a Live Activity on the Lock Screen / Dynamic Island while a session is running. When the user force-quits the app by swiping it up from the App Switcher, I want the Live Activity to disappear as quickly as possible. I have already confirmed (from on-device testing and Apple Developer Forums thread 732418) that: applicationWillTerminate is not called on swipe-up force-kill, only on OS-initiated termination or crash. So synchronous Activity.end(...) from the app itself is not a solution for the force-kill path. Shortening staleDate does not visually dismiss the Live Activity once the app process is gone — the Widget Extension keeps rendering the last fresh snapshot and there is no body-reevaluation trigger on the stale transition post-app-death. (I implemented and verified this, then rolled it back.) The only Apple-official reliable mechanism is APNs push-to-end (Activity.request(pushType: .token) + server sends event: end via APNs). Current architecture I have APNs push-to-end working end-to-end. Structure: Client: Activity.request(pushType: .token), subscribe to Activity.pushTokenUpdates, forward each new token to the backend. Backend: On every client heartbeat, upsert (user_id, la_apns_token, la_activity_id, last_heartbeat) into Postgres. A separate scheduler polls for rows whose last_heartbeat < now() - grace_ttl and sends APNs event: end to the stored token. Parameters I am currently running with: Parameter Value Client heartbeat interval 60 s Orphan grace TTL (server) 135 s (heartbeat × 2.25, to absorb network jitter) Scheduler poll interval 30 s The observation End-to-end latency from "user force-kills the app" to "Live Activity disappears from Lock Screen" is: Worst case: 60 + 135 + 30 = ~225 s (~3.75 min) Typical: ~3 min (as consistently measured on iOS 26.4.1, iPhone 17 Pro Max) Theoretical minimum (if the kill happens exactly at a heartbeat boundary): ~135 s Users perceive 3 minutes as broken — the timer clearly stopped (no ticking), but the Live Activity "ghost" is still visible on the Lock Screen. My question Is there any Apple-supported mechanism to reliably tear down a Live Activity faster than ~2 minutes after the owning app's process is gone, given that applicationWillTerminate does not fire on swipe-kill? Specifically: Is there any practical lower bound below ~60 s for this scenario using the current ActivityKit + APNs model, assuming we are not willing to spam heartbeats every few seconds? I can push heartbeat to 20–30 s, but the server cost grows linearly with active sessions. Does BGAppRefreshTask / BGProcessingTask have any documented lifecycle hook that fires on user-initiated swipe-kill specifically, so that I could do a "last-heartbeat flush" just before the process dies? My understanding is that background tasks are scheduled for later and do not fire synchronously at termination. Is there any signal from APNs/ActivityKit to my server (e.g. a feedback-service-like mechanism) that indicates "this Live Activity's owning app was force-killed", which would let the server short-circuit the heartbeat-based orphan detection? Are there any new APIs in iOS 18.x or the upcoming release that address this specific force-kill → LA-dismissal latency? I could not find anything in the 18.x release notes, but I may have missed it. What I am NOT asking I am not asking how to implement APNs push-to-end (that works). I am not asking about applicationWillTerminate (I already confirmed it does not fire on swipe-kill). I am not asking about shortening staleDate as a visual workaround (I already verified it does not trigger body reevaluation post-kill). Environment iOS 26.4.1 (also reproducible on 18.x devices I have on hand) iPhone 17 Pro Max, iPhone 15 Pro, iPad Air 11-inch (M3) Xcode 26.x Activity.request(pushType: .token) with ActivityContent + custom stalenessInterval = 120s APNs HTTP/2 via token auth (.p8), targeting api.push.apple.com in production apns-push-type: liveactivity, apns-priority: 10, payload includes event: end What I have tried (for the record, to avoid "did you try" responses) applicationWillTerminate with DispatchSemaphore 3.5 s sync wait + dismissalPolicy: .immediate — works only for OS-terminate, not swipe-kill. stalenessInterval = 30s + 15 s refresh cadence + override to 5 s on AppLifecycleState.paused — verified not to dismiss the LA after app death. Cold-start reconciliation via Activity<...>.activities on next app launch — works, but that only helps if the user relaunches. Current APNs push-to-end with 60 s / 135 s / 30 s configuration — works, but latency is the complaint. Any guidance, even "no, ~2 minutes is the floor by design" with a pointer to the relevant doc, would be very helpful. Thank you.
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108
Activity
2w
Live Activity updates not received on iPhone 16 Pro Max when started via ActivityKit push
Description When starting Live Activities via ActivityKit push notifications, the “start” notification is received correctly on iPhone 16 Pro Max, but subsequent update or end push notifications are not. The same implementation on iPhone 16 Pro behaves as expected (both start and update/end notifications are delivered and processed). Environment Property Value Device (failing) iPhone 16 Pro Max Device (working) iPhone 16 Pro iOS Version 18.5 Xcode / SDK 16.2/ActivityKit / Push Notifications Network Wi-Fi / Cellular (both tested) Data Collection Method Devices connected via USB. Logs captured using Console.app. Log filtering applied for the liveactivitiesd daemon to isolate Live Activity behavior. Initial Triage/Observations Payload format confirmed compatible; no incompatible fields. APNs token remains the same across messages (no refresh). Identical ActivityKit subscriptions/participants on both devices. Server-side delivery is confirmed: iPhone 16 Pro receives all messages (start, update, end). Only iPhone 16 Pro Max fails to receive update or end push notifications. Log Analysis iPhone 16 Pro (Working) Push-to-Start successfully received: 13:45:20 - APSXPCDeliverMessageEvent: Created APSIncomingMessage 13:45:20 - Received message: eventType: start(SessionPushNotifications.IncomingMessage.EventType.StartParameters(attributesType: "AchToLSUpgradeAttributes", attributesData: 125 bytes, inputs: [])) 13:45:20 - Created activity: 1C081AC5-01AE-4EC0-8B67-5F2A9FAE2D60 13:45:45 - APSXPCDeliverMessageEvent: Created APSIncomingMessage 13:45:45 - Received message: eventType: end(dismissDate: Optional(2025-07-21 21:00:44 +0000)) 13:45:20 - Activity updated: 1C081AC5-01AE-4EC0-8B67-5F2A9FAE2D60 13:45:20 - Local activity did update: 1C081AC5-01AE-4EC0-8B67-5F2A9FAE2D60 iPhone 16 Pro Max (Failing) 13:56:39 - APSXPCDeliverMessageEvent: Created APSIncomingMessage 13:56:39 - Received message: eventType: start(SessionPushNotifications.IncomingMessage.EventType.StartParameters(attributesType: "AchToLSUpgradeAttributes", attributesData: 125 bytes, inputs: [])) 13:56:39 - Created activity: E6BBF691-0C7A-4791-98D2-6F1440D9932E **No subsequent APNs push-to-update or push-to-end messages received.** 13:56:39 - No destinations for event E6BBF691... of type start 13:56:40 - No destinations for event E6BBF691... of type update Questions for Apple Engineering Are there known issues with ActivityKit push notifications specifically on iPhone 16 Pro Max devices? What additional diagnostic logs (system, APNs, liveactivitiesd) would be most helpful to collect? Could device-specific power management, notification settings, or OS-level changes on Pro Max models affect Live Activity updates? Are there differences in how Live Activity push subscriptions or routing are handled on iPhone 16 Pro Max vs Pro that could lead to this issue?
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2
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335
Activity
3w
Live Activity Stops Updating After 30 Seconds in Background During Audio Playback
Hi I developed a music app that plays offline audio and displays lyrics using Live Activities. According to ActivityKit documentation, Live Activities can be updated from the background. However, in my case, updates stop after ~30 seconds when the app goes to the background or the device is locked. Important points: The app continues running in the background (audio playback works fine using AVAudioSession with .playback) Background code execution is working as expected Only the Live Activity stops updating I am not using push updates since this is an offline app. Is there any limitation or requirement for updating Live Activities continuously in the background during audio playback? Audio Session Configuration let session = AVAudioSession.sharedInstance() try session.setCategory( .playback, mode: .default, options: [.mixWithOthers] // ✅ DO NOT interrupt other audio ) try session.setActive(true) print("✅ [AudioSession] Activated with mixWithOthers") } catch { print("❌ [AudioSession] Error: \(error)") } Live Activity Update Methods guard let activity = getLiveActivity(for: recordID) else{ print("⚠️ No Live Activity found for recordID: \(recordID)") return } guard activity.activityState == .active else { print("⚠️ Activity is not active") return } Task { let content = ActivityContent( state: state, staleDate: Date().addingTimeInterval(60 * 60 * 12), relevanceScore: 1.0 ) await activity.update(content) print("✅ Live Activity updated with ActivityContent") } }
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269
Activity
3w
Live Activity Silent Rendering Failure- Any Way to Detect Crash / Failure State?
Hi Apple Team, We are facing an issue with Live Activities where the UI intermittently fails to render and shows a loader or blank state. After extensive debugging, we’ve identified that the failure happens during the rendering phase inside the system process (WidgetKit / liveactivitiesd), but there are no actionable signals exposed to the app. Problem: Live Activity launches successfully After a few updates or under certain UI conditions, it: stops rendering shows a loader / blank UI sometimes disappears No crash logs are generated No MetricKit diagnostics available for the extension Console logs show: Invalid frame dimension (negative or non-finite) Archive was nil. LiveActivity will be empty Sometimes because of memory pressure too The extension process appears to terminate silently Challenge Currently, there is no way to detect from the app side that: the Live Activity has failed to render the extension process has crashed/terminated the UI is no longer being updated Questions Is there any callback, delegate, or lifecycle hook that notifies when: a Live Activity rendering fails the extension process crashes or is terminated by the system? Is there any recommended way to detect a “broken” Live Activity state (e.g., stuck loader / non-updating UI)? Are there any diagnostic APIs or logs we can rely on in production to identify such failures? Is this considered expected behavior under certain system constraints (e.g., memory/rendering limits), and if so, are there guidelines to proactively detect or mitigate it? Goal We want to: proactively detect Live Activity failure log it for monitoring optionally fallback or recover gracefully Additional context: We fixed all the issues and the live activity is pretty stable. But asking for methods to track & fix such cases.
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0
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1
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264
Activity
4w
Live Activity Not Updating Frequently for Offline Music App (Lyrics Sync Issue)
Hi everyone, I’m currently implementing Live Activities in my music app to display real-time lyrics on the Lock Screen. The app works fully offline, so I’m not using push updates or push tokens. Instead, I’m updating the Live Activity locally as each new line of lyrics is played (essentially near real-time updates synced with the song). However, I’m running into an issue where the Live Activity UI is not updating reliably or frequently enough. Even though I’m calling the update method for each lyric line, the changes are either delayed or not reflected at all. Here’s some additional context: • The app runs fine in the background (verified via battery usage and playback behavior) • Live Activity is successfully created and initially displayed • Updates are triggered locally (no push notifications involved) • Updates are happening quite frequently (per lyric line) • No crashes or errors are observed My questions: 1. Is there a system-imposed throttling limit on how frequently Live Activities can be updated locally? 2. Are there recommended update intervals for smooth UI updates (e.g., for use cases like lyrics or timers)? 3. Does Live Activity deprioritize updates for offline apps or background execution? 4. Are there any additional configurations or capabilities required to ensure consistent updates? 5. Is using something like AsyncStream or other concurrency patterns helpful in this case? 6. Are there any undocumented limitations or best practices for high-frequency updates? 7. Is there any private or internal API used by Apple apps (like Music) that allows smoother real-time updates? My goal is to achieve smooth, near real-time lyric updates similar to Apple Music’s Now Playing experience. Any guidance, best practices, or clarification would be greatly appreciated. Thanks in advance!
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206
Activity
4w
Live Activity works perfectly on Simulator but fails on physical device: "No asset provider bundle ID provided"
Hello community, I am implementing a Live Activity for my existing App Store app. The Live Activity works perfectly on the iOS Simulator, but it completely fails to appear on the physical device's lock screen. When I call Activity.request, it succeeds and returns a valid Activity ID, but the physical device's console immediately outputs the following errors from liveactivitiesd: liveactivitiesd is not entitled to specify a scene target. Defaulting containingProcess target to liveactivitiesd No asset provider bundle ID provided I have spent days debugging this and have tried every known workaround. Here is the comprehensive list of what I have already verified and attempted: Environment: Xcode: 16.4 iOS Device: iPhone 13 mini, iOS 26.3.1 macOS: Sequoia 15.6 What I have verified/tried (to avoid duplicate suggestions): NSSupportsLiveActivities: It is set to YES in the main app's Info.plist. I also tried adding it to the Widget Extension's Info.plist just in case. App Icons: The main app has a valid AppIcon set in Assets.xcassets. The Primary App Icon Set Name in Build Settings is correctly set to AppIcon. Bundle IDs: They match perfectly (com.mycompany.app and com.mycompany.app.MyWidget). Version & Build Numbers: The main app and the Widget Extension have exactly the same Version and Build numbers. App Groups & Entitlements: Checked and perfectly synced between the main app and the extension. Dummy Widget: Since it's a Live-Activity-only extension, I added a standard static DummyWidget to the WidgetBundle to prevent the known iOS 17 bug where the system ignores extensions without home screen widgets. Memory/Sanitizers: Ensured Address Sanitizer and Zombie Objects are completely disabled in the Scheme to prevent the 30MB memory limit crash on the device. Nuclear Option: Completely deleted the Widget Extension target, wiped DerivedData, restarted the Mac and iPhone, and recreated the extension from scratch. Minimal UI Test: Replaced the widget's UI with a simple Text("Test") to rule out any SwiftUI rendering crashes. Device Settings: Verified that "Live Activities" is enabled under "Face ID & Passcode" settings on the physical iPhone. Despite all of this, the Simulator works flawlessy, while the device throws No asset provider bundle ID provided and shows nothing. Does anyone know what specific condition causes liveactivitiesd to fail to find the asset provider (the parent app) on a physical device for an existing app? Are there any undocumented provisioning profile quirks or obscure Build Settings I might be missing? Any insights would be deeply appreciated. Thank you!
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3
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0
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244
Activity
Apr ’26
After iOS app overlay installation widget process killed OSLaunchdJob | handle= start succeeded, info=spawn failed, error=111: Invalid or missing Program/ProgramArguments
默认 chronod [com.jd.jinrong.JDJRWidget] Creating session... 默认 chronod [DFB1D11C]: activityHandler ended 默认 iconservicesagent [0x5e2812320] activating connection: mach=false listener=false peer=true name=com.apple.iconservices.peer.0x5e2812320 默认 runningboardd <OSLaunchdJob | handle=DCD4DC2C-32B3-4340-94F7-72C8C150F82C>: start succeeded, info=spawn failed, error=111: Invalid or missing Program/ProgramArguments 错误 runningboardd Process start failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 默认 runningboardd <OSLaunchdJob | handle=DCD4DC2C-32B3-4340-94F7-72C8C150F82C>: remove failed with error 144 Requestor lacks required entitlement 错误 runningboardd Job remove after failed start failed with Error Domain=OSLaunchdErrorDomain Code=144 "Requestor lacks required entitlement" UserInfo={NSLocalizedFailureReason=Requestor lacks required entitlement} 错误 runningboardd Launch failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 默认 runningboardd Executing launch request for xpcservice<com.jd.jinrong.JDJRWidget([osservice<com.apple.chronod>:2892])> (Launching extension com.jd.jinrong.JDJRWidget(BFEC114A-32BF-4A62-97F3-8B0C3FE6AB70) for host 2892) 默认 runningboardd Checking PreventLaunch: global:0 exPath:(null) predicates:(null) allow:(null) 默认 runningboardd Skipping preflight as <RBSLaunchRequest| xpcservice<com.jd.jinrong.JDJRWidget([osservice<com.apple.chronod>:2892])>; "Launching extension com.jd.jinrong.JDJRWidget(BFEC114A-32BF-4A62-97F3-8B0C3FE6AB70) for host 2892"> is not an app 默认 runningboardd Creating and launching job for: xpcservice<com.jd.jinrong.JDJRWidget([osservice<com.apple.chronod>:2892])> 默认 runningboardd <OSLaunchdJob | handle=3BD97E17-E46A-41F7-B794-520044BCD36D>: submitExtension created a job 默认 runningboardd <OSLaunchdJob | handle=3BD97E17-E46A-41F7-B794-520044BCD36D>: createInstance created a job <OSLaunchdJob | handle=3B5CA561-A268-4A5C-BAFF-819801EB4465> 默认 runningboardd <OSLaunchdJob | handle=3B5CA561-A268-4A5C-BAFF-819801EB4465>: start succeeded, info=spawn failed, error=111: Invalid or missing Program/ProgramArguments 错误 extensionkitservice RBSLaunchRequest error launching extension com.jd.jinrong.JDJRWidget error: Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0xca4d04aa0 {Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}} 错误 runningboardd Process start failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 默认 runningboardd <OSLaunchdJob | handle=3B5CA561-A268-4A5C-BAFF-819801EB4465>: remove failed with error 144 Requestor lacks required entitlement 错误 runningboardd Job remove after failed start failed with Error Domain=OSLaunchdErrorDomain Code=144 "Requestor lacks required entitlement" UserInfo={NSLocalizedFailureReason=Requestor lacks required entitlement} 错误 runningboardd Launch failed with Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed} 错误 chronod -[_EXServiceClient launchWithConfiguration:error:]_block_invoke failed with error: Error Domain=com.apple.extensionKit.errorDomain Code=2 "(null)" UserInfo={NSUnderlyingError=0xde6b31c10 {Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0xde6b328e0 {Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}}} 错误 chronod New process is nil. 错误 chronod Failed to create extensionProcess for extension 'com.jd.jinrong.JDJRWidget' error: Error Domain=com.apple.extensionKit.errorDomain Code=2 "(null)" UserInfo={NSUnderlyingError=0xde6b31c10 {Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0xde6b328e0 {Error Domain=NSPOSIXErrorDomain Code=111 "Unknown error: 111" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}}}. 默认 chronod [com.jd.jinrong.JDJRWidget] Failed to launch extension with error: Error Domain=com.apple.extensionKit.errorDomain Code=2 UserInfo={NSUnderlyingError=0xde6b31c10 {Error Domain=RBSRequestErrorDomain Code=5 UserInfo={NSLocalizedFailureReason=, NSUnderlyingError=0xde6b328e0 {Error Domain=NSPOSIXErrorDomain Code=111 UserInfo={NSLocalizedDescription=}}}}}.
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0
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228
Activity
Mar ’26
Urgent
I am developing a productivity app called "FocusPact" using the Screen Time API (Family Controls). Current Status: The parent app bundle ID (com.hayashikento.FocusPact) has already been approved for the Family Controls (Distribution) entitlement. I have recently submitted a new request for the DeviceActivityMonitorExtension bundle ID: com.hayashikento.FocusPact.FocusPActMonitor. The Issue: Currently, the extension only works while debugging with Xcode (Development entitlement). When the device is disconnected, the intervalWillEndWarning and intervalDidEnd triggers are ignored by the system because the Extension ID lacks the Distribution entitlement. This is a critical blocker for my MVP testing phase on TestFlight, as I cannot verify the core "automatic re-blocking" logic in a real-world environment. Request: Could any Apple staff or engineers help expedite the linking of this extension ID to my existing approved entitlement? Parent App ID: com.hayashikento.FocusPact Extension ID: com.hayashikento.FocusPact.FocusPActMonitor I would greatly appreciate any guidance or assistance to resolve this so I can proceed with user testing. Thank you.
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0
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171
Activity
Mar ’26
Live Activity triggered by AlarmKit remains as an empty state
I configured my app to show a Live Activity when an alarm rings using AlarmKit. However, if I dismiss the Live Activity by tapping somewhere other than the X button, and then long-press the Dynamic Island, a new Live Activity appears that is long but contains no information. Currently, the only way I can remove this empty Live Activity is to press the X button while the alarm is in the snooze state. Pressing the X button on the initial alarm does not remove it. Is there any way to prevent this behavior or properly handle / clean up this empty Live Activity?
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7
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2
Views
533
Activity
Mar ’26
Live Activity doesn't open watchOS app
Our watchOS App isn't opened when tapping on a Live Activity. Added the following to our Info.plist and still get the Open on iPhone option. <key>WKSupportsLiveActivityLaunchAttributeTypes</key> <array/> Is there something else we need to configure?
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5
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1
Views
1.5k
Activity
Mar ’26
Can't create a Live Activity from background
Our app is using the CLLocationManager to wake up the app near an iBeacon and then tries to connect to the accessory via bluetooth and UWB. For this to work in the background we need to create a Live Activity and show the user that the app is doing something. When the app is in the foreground or just recently got into the inactivity mode this works fine and we can use CoreBluetooth/NearbyInteraction even when the app then enters the background mode. But when the app is longer in the background creating a Live Activity via Activity.request() throws an ActivityAuthorizationError.visibility. According to the documentation the LiveActivityIntent is able to workaround this background restriction but I get the same exception when I create the LiveActivity from the perform() method. Is there another API to create Live Activities? Do I need to prepare the LiveActivityIntent somehow?
Replies
1
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0
Views
328
Activity
Mar ’26
Prevent Live Activity from appearing on Apple Watch
Hello, I’m working on an iOS app where we have integrated ActivityKit to support Live Activities. Our app currently supports iOS 16.x and above, and we do not have an Apple Watch app or watchOS support. However, we noticed that when a Live Activity starts on the iPhone, it automatically appears on the Apple Watch as well. Since our app is not designed for Apple Watch, we would like to prevent the Live Activity UI from appearing on the watch. My questions: Is there any way to disable or prevent Live Activities from showing on Apple Watch via code? Are there any configuration options in ActivityKit or Widget configuration that can restrict Live Activities to iPhone only? Our current setup: Minimum iOS version: 16.x Using ActivityKit for Live Activities No watchOS target in the app Any guidance or recommended approach would be greatly appreciated. Thanks
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0
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216
Activity
Mar ’26